Journal
FUEL
Volume 280, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2020.118646
Keywords
Ethylene glycol; Graphitic carbon nitride; Iron oxide; Palladium nanoparticles; Electro-co-deposition; Fuel cell
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Funding
- Ministry of Science and Technology, Taiwan [MOST107-2113-M-037-007-MY2]
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan
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The design and development of highly efficient and environmental-friendly methods for the synthesis of electrocatalysts are highly significant for fuel cell applications. Herein, we demonstrate a facile technique for the synthesis of graphitic carbon nitride/iron oxide/palladium nanoparticles (g-C3N4/Fe2O3/PdNPs) composite towards efficient electro-catalytic oxidation of ethylene glycol. g-C3N4/Fe2O3/PdNPs nanocomposite was prepared using a one-step simultaneous electrochemical co-deposition process. The electro-deposition was performed on a single-disk carbon screen-printed electrode (SPE) under acidic electrolyte solution containing g-C3N4 nanosheets, Fe2O3 nanoparticles, and palladium chloride as precursors. The structural and elemental composition of the electrochemically fabricated g-C3N4/Fe2O3/PdNPs nanocomposites modified SPE was investigated using fourier-transform infrared spectroscopy, field-emission scanning electron microscopy, and X-ray photoelectron spectroscopy techniques and the results indicated that three-dimensional nanoflower-like Fe2O3 and spherical shaped PdNPs were electro-deposited on the g-C3N4 nanosheets to form the nanocomposite. The voltammetric behavior of the developed g-C3N4/Fe2O3/PdNPs/SPE showed excellent electro-catalytic response towards ethylene glycol and superior electro-oxidation with high durability when compared to commercial Pd/C and other recently reported electro-catalyst materials. Therefore, the proposed g-C3N4/Fe2O3/PdNPs nanocomposite is proved to be an efficient electro-catalyst and can be highly suitable for direct alcohol fuel cell applications.
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